[讨论]如何分析Ghost focus generator的结果 [复制链接]

Ghost Trace Data
File : C:\Program Files\ZEMAX - Beta\Samples\Sequential\Objectives\Cooke 40 degree field.zmx Z"T#"FDIr  
Title: A SIMPLE COOKE TRIPLET.
Units are Millimeters.
Wavelength: 0.550000 μm VW[!%<  
Type: Double Bounces >)&]Ss5J  
The '****' denotes a possible internal focus *h `P+_Q7  
RMS is the RMS spot radius on axis at the primary wavelength. 1JFCYJy  
RMS values of 0.00 indicate that an accurate RMS 0E5
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could not be computed, usually due to ray errors.
This analysis may be inaccurate if the system is 5ZXP$.  
non-rotationally symmetric or uses non-standard surfaces.
Ghost reflection off surface 2 then 1. (GH002001.ZMX) H:d@@/  
Surf     Marginal          F/#          RMS 8?> #  
   1  5.0000E+000     5.737068  3.5355E+000 v%=@_`Ht  
   2  4.7160E+000     4.595701  3.3570E+000 b85r=tm   
   1  4.3614E+000     0.990012  3.1277E+000 m@z.H;  
   2  2.7155E+000     0.607262  1.9876E+000 _=wu>h&7  
   3 -2.2309E+000     0.916280  2.6065E+000 Lcx)wof  
   4 -2.7766E+000     0.514753  0.0000E+000 w4m)lQM  
   5 -7.3909E+000     0.888038  0.0000E+000 l=*60Ag\J~  
   6 -9.0530E+000     0.823473  0.0000E+000 E,/<;  
   7 -3.4681E+001     0.823473  0.0000E+000 DhVF^=x$  
Marginal ray height    :       -34.6809 #c?xJ&bh  
Chief ray height       :       -24.8107 =u5a'bp0;;  
Distance to ghost pupil:       -50.9613 (2o
P=9m  
Distance to ghost focus:       -57.1176 lD%Fk3  
Effective focal length :         8.2347